President Donald Trump said on Monday that tariffs on Canadian and Mexican imports are "on time and on schedule" despite efforts by the countries to beef up border security and halt the flow of fentanyl into the U.

Canada and Mexico are expected to step up efforts this week to avoid 25% tariffs on their exports to the US by persuading President Donald Trump’s administration that their steps to increase border security and curb fentanyl trafficking are working ahead of a March 4 deadline.

Trump also plans to impose new tariffs to match the rates charged by other countries. Set to begin as soon as April, the tariffs could be higher than what other countries would charge as subsidies, regulatory barriers and the value added tax — which is akin to a sales tax common in Europe — would be included in the calculations.